The primary aims of this dissertation are to identify and explain variation in potential evaporation at different elevations and different exposures on tropical high islands, to provide reference data for modeling evaporation, ...

Agricultural exploitation in the Brazilian Amazon Basin, including Para State, is a controversial issue. It puts ecological concern with tropical deforestation against the need of a growing population for land for food ...

Ridge and valley lines are important terrain features to many scientific endeavors and practical applications. They are extracted manually from topographic maps traditionally. Besides being tedious, the manual process ...